| (19) |
 |
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(11) |
EP 2 725 064 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
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21.01.2015 Bulletin 2015/04 |
| (43) |
Date of publication A2: |
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30.04.2014 Bulletin 2014/18 |
| (22) |
Date of filing: 16.10.2013 |
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| (51) |
International Patent Classification (IPC):
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| (84) |
Designated Contracting States: |
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AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL
NO PL PT RO RS SE SI SK SM TR |
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Designated Extension States: |
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BA ME |
| (30) |
Priority: |
19.10.2012 JP 2012231405
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| (71) |
Applicant: Shin-Etsu Chemical Co., Ltd. |
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Tokyo (JP) |
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| (72) |
Inventors: |
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- Muto, Mitsuo
Annaka-shi, Gunma (JP)
- Fukuda, Kenichi
Annaka-shi, Gunma (JP)
- Shiono, Mikio
Annaka-shi, Gunma (JP)
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| (74) |
Representative: Ter Meer Steinmeister & Partner |
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Patentanwälte mbB
Mauerkircherstrasse 45
81679 München
81679 München (DE) |
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| (54) |
Curable Fluoropolyether Gel Composition and Gel Article |
(57) A curable fluoropolyether gel composition comprising
(A) a linear polyfluoro compound having at least two alkenyl groups and a perfluoropolyether
structure in its backbone,
(B) a polyfluoromonoalkenyl compound having one alkenyl group and a perfluoropolyether
structure in its backbone, (C) a fluorinated organohydrogensiloxane having at least
two SiH groups, and (D) a platinum-based hydrosilylation catalyst is improved by adding
(E) a fluorinated acetylene alcohol as reaction regulator. The resulting composition
has advantages including uniform dispersion of the catalyst, storage stability, consistent
curability, and cured hardness.